Halak, 27, has appeared in five games this season posting a 3-0-0 record including a 2.10 goals-against average and an .889 save percentage, and is tied for the NHL lead with two shutouts. He had been out with a groin injury.
The Blues are 0-3-1 since starting the season with six wins in their first seven games.
The team also assigned goaltender Jake Allen to their American Hockey League (AHL) affiliate, Peoria Rivermen.
It's about enjoying the moment. It's pretty cool to get that many people together and that excited about hockey to the point they really want you to mess up. They've got a ton of red jerseys and you have to sit back and appreciate people love hockey that much and you are the one out there who gets to play the game. Just try and stick with that respect for the game and also the mentality that for me it's just about entering the fight and seeing how long I can stay in it.
— Canucks goaltender Ryan Miller on what he expects from the fans in Calgary for Game 6